<!doctype html>
<html>
<head>
<meta charset='UTF-8'>
<title>VDirector Privacy Protection Guidelines</title>
</head>
<body>
    <script>
        var reg = new RegExp("(^|&)lang=([^&]*)(&|$)", "i");
        var r = window.location.search.substr(1).match(reg);
        var lang = r != null ? unescape(r[2]) : "zh_CN";
        var hrefSeg = window.location.href.split("/");
        var url = hrefSeg.slice(0, hrefSeg.length-1).join("/") + "/" + lang + ".html";
        window.location.href = url;
    </script>
    Hello
</body>
</html>